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Author Topic:   decking block
BIGG C
Dirt Maniac

Total posts: 114
posted February 23, 2004 08:31 PM  
We must use stock pistons only. Ford 2300 we are using dished forged turbo pistons. Head is milled to intake bolts. Has anyone milled these pistons until flat top and then decked the block to zero? This will be about .100 inch. Will the block take this much cutting? Thanks BIGG C

speedyd
Dirt Roller

Total posts: 11
posted February 24, 2004 10:52 AM  
go get you some stock type flat tops and dont worry about it. better yet - find a performance house in your area and get a decent set of hypereutectic's. they are stock appearing. they cost about 10 - 12 bucks a piece and work great. sealed power has decent pistons. bore your block 30 or 40 over - install one of the pistons - measure how far down in the hole they are - and have the deck milled that amount. it will be as close to zero as you are gonna get. the pistons usually come about 20 down.

speedyd
Dirt Roller

Total posts: 11
posted February 24, 2004 10:58 AM  
i'm assuming your rules state stock pistons but what they usually mean are stock appearing. do they allow you to bore the block - if so - that would mean you would have to run an aftermarket piston cause obviously stock pistons only come stock bore.
even if you get rebuilder pistons from ford they still are after market from badger or enginetech or somebody. they usually mean a three ring stock type piston. ask your tech guy? stock cast pistons will often times crack the piston skirt under high rpm usage. thats why i recommended the hypo's or for that matter buy you a set of good forged pistons and be done with it. depends on your money situation.

Trapper
Dirt Full Roller

Total posts: 64
posted February 24, 2004 05:08 PM  
I would suspect that decking the block that much would make it awful thin clearance to the water jacket. On first glance it would sound like a good idea but sounds a little expensive and I personally wouldnt be confident in the final product without talking to someone who has done it. BTW the hypereutectic pistons are a real good alternative.

TRAP

b4racing
Dirt Forum Champ
Total posts: 626
posted February 24, 2004 05:55 PM  
THe thing I don't like about Hyper pistons is when they go they go. It will wipe everything out. Just my .02

speedyd
Dirt Roller

Total posts: 11
posted February 25, 2004 10:26 AM  
i agree totally b4 - they are better than the stock cast but do make a mess when they go boom. havent had any do it - not yet anyway. i have had stock cast pistons do it on several occasions and we usually put the hypo's in for those who cant or wont spend the money on the forged. they seem to be a good compromise considering that any piston that comes apart is gonna take everything with it.

juliaferrell
Dirt Freak

Total posts: 370
posted April 05, 2004 10:49 AM  
I'd go to the junk yard and get some before I'd deck a block .100. Take a while and would be good and square (hehe) when it was done. Why turbo pistons? I'd pitch that junk. What 40 bucks for a set of Federal Mog's or something. I'd mill the block and let them stick out the hole about .030. Head gasket thickness of .042 on those cheap victor ones. NO WORRIES!!@! runner

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